Unit 8: Space and Flight

confine

keep within a certain limit ( giới hạn )

duration

the length of time that something continues ( khoảng thời gian )

expedition

a long and carefully organized journey to a dangerous or unfamiliar ( cuộc thám hiểm )

exposed

to have contact with something, either by seeing, smelling, or breathing ( tiếp xúc )

intense

having a very strong effect or felt very strongly ( mãnh liệt )

sacrifice

act of not doing sth in order to do something more important ( sự hi sinh )

behind schedule

chậm tiến độ

devise

to plan or invent a new way of doing sth ( nghĩ ra, phát minh )

far - fetched

very unlikely to be true or to happen ( khó tin, khó xảy ra )

primitive

simple, without modern features that make it better or faster ( nguyên thuỷ )

principle

a moral rule or believe about what is right or wrong ( nguyên tắc )

steer

to guide or control